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        <td class="header">&nbsp; Fill DEM Hole</td>


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<h3>Fill DEM Hole&nbsp;Operator</h3>

<p>


    The operator fills holes&nbsp;in DEM product with linear interpolations in both row and column directions.</p>

<p>For
    a given DEM pixel, if its value is the same as No Data Value (which is
    input by user from UI), then it is identified as a pixel in hole.</p>

<p>For
    a&nbsp;pixel in hole, a linear interpolation in the row direction is
    performed first using the nearest two valid pixel values&nbsp;in the
    row. Then a similar linear interpolation is performed in column
    direction. Finally the average of the two interpolated pixel values is
    assigned to the hole pixel.</p>

<p><br>The following parameters are used by the operator:</p>
<ol>
    <li><p>Source Bands: Band of DEM product.</p></li>
    <li><p>No Data Value: Value for invalid pixels in DEM.&nbsp;</p></li>
</ol>
<br><br><img style="width: 500px; height: 500px;" alt="" src="images/fill_dem_hole_dlg.jpg">


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